Lock Right Locker

9165
9166

Powertrax® Lock-Right performance lockers’ straight-line performance is equal to a solid spool axle, yet they automatically unlock during turns. When extreme traction output and high-strength are required, racers, hot-rodders and muscle car owners chose Lock-Right lockers!
Best suited for extreme off-road to severe on-road use, Powertrax lockers replace the spider gears in your differential carrier without affecting your ring and pinion settings. The whole job can be done in your driveway with common hand tools in a couple of hours. A carrier is not included.

  • Brute Force Devices For Rugged Applications
  • Replacement Of Differential Case Not Required
  • Ring And Pinion Setup Not Altered
  • Installs Easily In Front/Rear Or Both
  • Proven In Most Demanding Applications

1830-LR Application Notes

  • For Ford 7.5" (10 Bolt)
  • 28 Spline
  • For Open Differential
  • Only Recommended Up to 4.10 Ratio - Will Have To Clearance Teeth On Ring Gear
  • 4.56 and Numerically Higher Is Not Recommended As Too Much Material Might Have To Be Removed

Warranty

2 Years or 100,000 Miles

1830-LR Specifications

Axle Shaft Diameter 1.2 (Inch)
Differential Case Design Type Ford 7.5
Ring Gear Bolt Quantity 10
Spline Quantity 28
Taxonomy A Differential LD
Taxonomy B Differential Lockers & Spools
Taxonomy C Ford 7.5
Taxonomy D Drop-in Lockers
Type Open
Where to buy

Vehicle Applications

  • 1985 – 1990 Chevrolet Calypso
  • 1986 – 1997 Ford Aerostar
  • 1984 – 1990 Ford Bronco II
  • 1978 – 1983 Ford Fairmont
  • 1981 – 1982 Ford Granada
  • 1979 – 1986 Ford LTD
  • 1979 – 2014 Ford Mustang
  • 1983 – 2013 Ford Ranger
  • 1980 – 1997 Ford Thunderbird
  • 1982 – 1987 Lincoln Continental
  • 1984 – 1987 Lincoln Mark VII
  • 1994 – 1997 Mazda B2300
  • 1998 – 2001 Mazda B2500
  • 1994 – 1997 Mazda B3000
  • 1994 – 1997 Mazda B4000
  • 1979 – 1986 Mercury Capri
  • 1980 – 1997 Mercury Cougar
  • 1979 – 2011 Mercury Grand Marquis
  • 1979 – 1986 Mercury Marquis
  • 1979 – 1980 Mercury Monarch
  • 1978 – 1983 Mercury Zephyr
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov